Cisco CCNA 200-301 Questions & Answers

• Question 1161:

  Which type of ipv6 address is publicly routable in the same way as ipv4 public addresses?

  A. multicast

  B. unique local

  C. link-local

  D. global unicast

  Correct Answer: D

  The type of IPv6 address that is publicly routable in the same way as IPv4 public addresses is a global unicast address. Global unicast addresses are unique, globally reachable addresses that are assigned to devices that need to communicate with other devices over the Internet. They are similar to IPv4 public addresses in that they can be used to reach devices on other networks, but they are structured differently and use a different address space.

  Global unicast addresses are identified by the prefix "2000::/3" and are assigned to devices by their network administrator or by an Internet service provider (ISP). They are used for communication between devices on different networks, such as between a device on a LAN and a device on the Internet.

  It's important to note that global unicast addresses are not the same as link-local addresses, which are used for communication within a single network segment or link and are not intended to be routable over the Internet. Link-local addresses are identified by the prefix "FE80::/10" and are automatically generated by the device when it is connected to a network.

• Question 1162:

  A corporate office uses four floors in a building.

  1.

  Floor 1 has 24 users.

  2.

  Floor 2 has 29 users.

  3.

  Floor 3 has 28 users.

  4.

  Floor 4 has 22 users.

  Which subnet summarizes and gives the most efficient distribution of IP addresses for the router configuration?

  A. 192.168.0.0/24 as summary and 192.168.0.0/28 for each floor

  B. 192.168.0.0/23 as summary and 192.168.0.0/25 for each floor

  C. 192.168.0.0/25 as summary and 192.168.0.0/27 for each floor

  D. 192.168.0.0/26 as summary and 192.168.0.0/29 for each floor

  Correct Answer: C

• Question 1163:

  What are two differences between optical-fiber cabling and copper cabling? (Choose two.)

  A. A BNC connector is used for fiber connections

  B. The glass core component is encased in a cladding

  C. The data can pass through the cladding

  D. Light is transmitted through the core of the fiber

  E. Fiber connects to physical interfaces using RJ-45 connections

  Correct Answer: BD

  Ref: Core (optical fiber) - Wikipedia

  “The core of a conventional optical fiber is the part of the fiber that guides the light. It is a cylinder of glass or plastic that runs along the fiber's length. The core is surrounded by a medium with a lower index of refraction, typically a cladding of

  a different glass, or plastic. Light travelling in the core reflects from the core-cladding boundary due to total internal reflection, as long as the angle between the light and the boundary is greater than the critical angle.

  …”

• Question 1164:

  What is the difference regarding reliability and communication type between TCP and UDP?

  A. TCP is reliable and is a connectionless protocol; UDP is not reliable and is a connection-oriented protocol.

  B. TCP is not reliable and is a connectionless protocol; UDP is reliable and is a connection-oriented protocol.

  C. TCP is not reliable and is a connection-oriented protocol; UDP is reliable and is a connectionless protocol.

  D. TCP is reliable and is a connection-oriented protocol; UDP is not reliable and is a connectionless protocol.

  Correct Answer: D

  Ref: Difference between TCP and UDP: Comparison in 2022 - IP With Ease

  Key points of difference between TCP and UDP …

  •

  TCP is the connection-oriented protocol while UDP is connectionless protocol.

  •

  TCP is more reliable than UDP.

• Question 1165:

  Which IPv6 address block forwards packets to a multicast address rather than a unicast address?

  A. 2000::/3

  B. FC00::/7

  C. FE80::/10

  D. FF00::/12

  Correct Answer: D

  In IPv6, multicast addresses are used to send a single packet to multiple hosts simultaneously. The IPv6 address block that forwards packets to a multicast address rather than a unicast address is the FF00::/8 address block.

• Question 1166:

  How does CAPWAP communicate between an access point in local mode and a WLC?

  A. The access point must not be connected to the wired network, as it would create a loop

  B. The access point must be connected to the same switch as the WLC

  C. The access point must directly connect to the WLC using a copper cable

  D. The access point has the ability to link to any switch in the network, assuming connectivity to the WLC

  Correct Answer: D

  The access point has the ability to link to any switch in the network, assuming connectivity to the WLC. The AP can be connected to any switch in the network, as long as the switch has connectivity to the WLC. The AP and the WLC exchange CAPWAP messages over IP, using UDP port 5246 or 5247, depending on whether the messages are encrypted.

• Question 1167:

  Which function does the range of private IPv4 addresses perform?

  A. allows multiple companies to each use the same addresses without conflicts

  B. provides a direct connection for hosts from outside of the enterprise network

  C. ensures that NAT is not required to reach the Internet with private range addressing

  D. enables secure communications to the Internet for all external hosts

  Correct Answer: A

• Question 1168:

  Which action must be taken to assign a global unicast IPv6 address on an interface that is derived from the MAC address of that interface?

  A. explicitly assign a link-local address

  B. disable the EUI-64 bit process

  C. enable SLAAC on an interface

  D. configure a stateful DHCPv6 server on the network

  Correct Answer: C

  SLAAC is designed to be a simple, automatic approach to assigning IPv6 addresses. It is defined in RFC4862 and is specifically used to assign only a global unicast IPv6 address, an IPv6 prefix length, and, optionally, a default router.

• Question 1169:

  Several new coverage cells are required to improve the Wi-Fi network of an organization. Which two standard designs are recommended? (Choose two.)

  A. 5GHz provides increased network capacity with up to 23 nonoverlapping channels.

  B. 5GHz channel selection requires an autonomous access point.

  C. Cells that overlap one another are configured to use nonoverlapping channels.

  D. Adjacent cells with overlapping channels use a repeater access point.

  E. For maximum throughput, the WLC is configured to dynamically set adjacent access points to the same channel.

  Correct Answer: AC

  A. The 5GHz frequency band provides increased network capacity because it has more nonoverlapping channels available than the 2.4GHz frequency band. This allows for more devices to connect to the network and increases the overall capacity of the network.

  C. When designing a wireless network, it is important to ensure that cells (coverage areas) do not overlap one another. If cells overlap, it can cause interference and negatively impact the performance of the network. To prevent this, cells that overlap should be configured to use nonoverlapping channels. This allows the devices in those cells to communicate without interfering with each other.

  B, D, E options are not the standard design for coverage cells, the selection of channel depends on the environment, and it's not a requirement to have autonomous access point, repeater access point or dynamic channel selection.

• Question 1170:

  How do TCP and UDP differ in the way they provide reliability for delivery of packets?

  A. TCP does not guarantee delivery or error checking to ensure that there is no corruption of data, UDP provides message acknowledgement and retransmits data if lost.

  B. TCP provides flow control to avoid overwhelming a receiver by sending too many packets at once, UDP sends packets to the receiver in a continuous stream without checking for sequencing

  C. TCP is a connectionless protocol that does not provide reliable delivery of data; UDP is a connection-oriented protocol that uses sequencing to provide reliable delivery.

  D. TCP uses windowing to deliver packets reliably; UDP provides reliable message transfer between hosts by establishing a three-way handshake.

  Correct Answer: B

  Ref: CCNA 200-301 Official Cert Guide, Volume 2

  “Chapter 1. Introduction to TCP/IP Transport and Applications

  …

  Flow Control Using Windowing

  TCP implements flow control by using a window concept that is applied to the amount of data that can be outstanding and awaiting acknowledgment at any one point in time.

  …

  User Datagram Protocol

  UDP provides a service for applications to exchange messages. Unlike TCP, UDP is connectionless and provides no reliability, no windowing, no reordering of the received data, and no segmentation of large chunks of data into the right size

  for transmission.

  …”